The people who can attend a mediation fall into a short list: the mediator, the disputing parties (or representatives who can bind them), their attorneys if they choose to bring any, and support persons, experts, or interpreters when the parties and mediator agree. Only the mediator and the parties are truly required. Everyone else is optional, but each additional attendee needs a clear role, advance notice to the other side, and a willingness to sign on to the session’s confidentiality rules.
The Parties to the Dispute
The people at the center of the conflict are the only essential attendees besides the mediator. It is their dispute, and they are the ones who will live with whatever agreement comes out of the session. Each party needs to be in the room to explain their perspective, hear the other side in their own words, and evaluate proposals in real time. A session where one side is absent, or sends someone unfamiliar with the facts, rarely produces anything useful.
When a party is a business, government agency, or other organization, it satisfies its attendance obligation by sending a representative who knows the facts and has enough authority to negotiate on the organization’s behalf. Picking the right person matters. Sending a junior employee who has to check with the boss on every proposal is functionally the same as not showing up.
Someone With Settlement Authority
This is where mediations most commonly fall apart. Every party at the table needs someone present who can say yes to a deal without calling a supervisor, a board, or a claims department for permission. If the person in the room lacks the power to agree, the other side is negotiating with nobody. The Fourth Circuit identifies having appropriate decision-makers present as a core requirement of its program.1United States Court of Appeals for the Fourth Circuit. Preparing for a Mediation
In personal injury and insurance disputes, this usually means an adjuster with authority to approve a settlement up to the amount realistically at stake. Courts have held that while a judge can order an insurance company to send a representative with full settlement authority, the court generally cannot dictate which specific employee is sent. The practical lesson for a claimant: confirm in advance that whoever the other side is sending actually has the power to settle.
For corporate or government parties, the representative needs to understand the facts and carry enough internal authority to commit to a resolution. Someone who can only recommend a settlement to higher-ups often wastes everyone’s time. Some courts and mediators ask each side to confirm, before the session, that the attendee has full authority.
The Mediator
The mediator is a trained neutral whose job is to guide the conversation, not decide who wins. They set ground rules, help each side articulate what they actually need, and push the discussion toward options neither party may have considered. A mediator will not tell you what to do, and even if the mediator happens to be a lawyer, they will not give you legal advice.
Before accepting a case, a mediator is expected to investigate whether they have any connection to the dispute or the people involved that could compromise their neutrality. If a potential conflict of interest surfaces at any point, professional standards require them to disclose it as soon as practicable. The mediation can then continue only if all parties agree to proceed, and if the conflict is serious enough to undermine the process itself, the mediator should step down even if both sides want to continue.2Mediate.com. Model Standards of Conduct for Mediators
Attorneys
Contrary to what many people assume, an attorney is not always required at mediation. In the Fourth Circuit’s federal mediation program, for example, the parties can agree to meet with the mediator without their lawyers present.1United States Court of Appeals for the Fourth Circuit. Preparing for a Mediation Community mediations, neighbor disputes, and many workplace conflicts routinely proceed without any lawyers in the room. Some federal courts even run dedicated mediation programs for self-represented parties, pairing them with volunteer attorneys solely for the session.3United States District Court Southern District of New York. Mediation Advocacy in Pro Se Employment Discrimination Cases
Having a lawyer is strongly advisable when the dispute involves significant money, complex legal issues, or a settlement that could affect your rights long-term. An attorney helps you understand what you might win or lose in court, evaluate whether a proposed deal is fair, and review the written agreement before you sign. In court-ordered mediations with represented parties, the court typically expects counsel to attend and to have consulted with their client about settlement authority beforehand.4United States Court of Appeals for the Fourth Circuit. Federal Rule 33 and Local Rule 33 Establishing the Mediation Program You have the right to bring one, and in many mediations it is wise, but mediation itself does not require it.
Support Persons, Experts, and Interpreters
Mediation can be stressful, and parties sometimes want a spouse, family member, or close friend in the room for emotional support. The Uniform Mediation Act, adopted in some form by roughly a dozen states plus the District of Columbia, gives parties the right to be accompanied by an attorney or other support person, and a party can invoke that right even after previously agreeing to come alone. Support persons sit in the room but typically do not speak during negotiations. Their presence can help a party stay grounded, especially in disputes involving family or workplace conflicts.
Subject-matter experts serve a different purpose. An accountant can walk both sides through a business valuation, a contractor can explain repair costs, a medical professional can clarify the extent of injuries. Their role is to put objective data into the conversation so that proposals are grounded in reality. When a party does not speak the language being used, an interpreter is essential for meaningful participation.
Any additional attendee generally needs the agreement of all parties and the mediator before joining. The mediator may push back on someone whose presence could derail the process. A hostile ex-business partner brought as a “support person,” for instance, is more likely to inflame the discussion than help it.
Litigation Funders
An increasingly common wrinkle involves third-party litigation funders, outside investors who help finance a lawsuit in exchange for a share of any recovery. Their financial interest means a proposed settlement needs to work for them too, yet their involvement is often invisible. Parties typically sign nondisclosure agreements with their funders, so the mediator and the other side may have no idea a funder is involved.
Whether a funder should attend depends on the circumstances. A funder in the room adds another set of interests the mediator has to manage. A funder left completely out of the loop may later object to a settlement amount, unraveling an agreement the parties thought was final. If you have a litigation funder, work out their role with your attorney before the session so everyone knows who needs to approve the deal.
Confidentiality Binds Everyone in the Room
Everyone at the mediation is bound by confidentiality, not just the parties and their lawyers. The Uniform Mediation Act extends its confidentiality protections to “nonparty participants,” a category that includes experts, family members, interpreters, and anyone else who participates. Under the Act, mediation communications are confidential, and in legal proceedings parties, mediators, and nonparty participants each hold a privilege to refuse disclosure of their own communications.
Federal court mediation programs usually formalize this in a written confidentiality agreement that every attendee signs before the session begins. The Southern District of New York’s standard form, for example, includes a signature line for “observers” alongside the parties, counsel, and the mediator.5United States District Court Southern District of New York. Mediation Confidentiality Agreement If you are bringing a support person or expert, make sure they understand this commitment before they walk through the door.
Attending Remotely
Most courts and mediators now allow remote participation by video, though the rules vary. Some jurisdictions permit it whenever the parties agree; others require a motion or court order. A growing number of courts that allow virtual attendance require both working audio and video, meaning you cannot simply dial in by phone if the order specifies video.
Remote mediation introduces confidentiality risks that do not exist in a physical conference room. The mediator will typically ask each participant to confirm, before starting, that they have not shared the meeting link or password with anyone unauthorized, that no one else is in the room or able to overhear, and that they will not record the session. Screen-sharing, chat features, and recording functions on the platform need to be managed carefully.
If you are attending remotely, treat it with the same seriousness as an in-person session. Find a private room with a closed door, use headphones, and test your equipment beforehand. A party who appears on video from a coffee shop with people walking behind them signals to everyone else that they are not taking the process seriously.
What Happens if a Required Attendee Does Not Show
In voluntary mediation, skipping the session usually just means the dispute stays unresolved. In court-ordered mediation, the consequences can be severe. Federal Rule of Civil Procedure 16(f) authorizes courts to impose sanctions when a party fails to appear at a pretrial conference, is substantially unprepared, does not participate in good faith, or disobeys a court order. The rule provides that the court must order the noncompliant party or their attorney to pay the other side’s reasonable expenses, including attorney’s fees, unless the failure was substantially justified.6Legal Information Institute. Federal Rules of Civil Procedure Rule 16 – Pretrial Conferences; Scheduling; Management
Courts have used this authority aggressively. Sanctions for mediation no-shows have ranged from around $1,400 to over $41,000 in reported cases, depending on the circumstances and the costs the other side incurred. Sending a representative who technically shows up but lacks settlement authority can trigger the same result. When a court order specifies that someone with final settlement authority must attend in person and the party sends someone without that power, the court may treat it the same as a failure to appear. Beyond the money, not showing up to a court-ordered session colors how the judge views your good faith for the rest of the case.